Asus A7s full of colored vertical lines (GeForce 8400G m)

rags158

Honorable
Dec 20, 2013
2
0
10,510
Hi
I have a problem with my Asus a7s laptop all of a sudden it crashed and started to display colored vertical lines and then goes brighter until the screen is white. Hooked it up to an external monitor, pressed Function F8 everything looks Ok on the external monitor but it says there is a problem with the graphics card and windows has disabled it when I press the Function F8 to switch it back to the laptop monitor it still displays the lines and slowly turns to bright white. does this mean i have a faulty graphics card? (Geforce 8400g m) any help would be appreciated on how i could possibly fix this.

Thanks
 

rags158

Honorable
Dec 20, 2013
2
0
10,510
**UPDATE**
I tried another LCD screen and its the same screen goes brighter. Do you think it could be the LCD Inverter board? or anything else that could be at fault?

Thanks